Draft Document - Aggregates for railway ballast - Part 2: Complementary Information; German and English version prEN 13450-2:2021
文件草案.铁路道碴集料.第2部分:补充信息；德文版和英文版prEN 13450-2:2021

2021-07-01

Draft Document - Aggregates for construction works - Part 1: Characteristics; German and English version prEN 17555-1:2021
文件草案.建筑工程用骨料.第1部分:特性；德文和英文版本prEN 17555-1:2021

2021-07-01

Draft Document - Railway applications - Power convertors installed on board rolling stock - Part 1: Characteristics and test methods (IEC 9/1785/CDV:2013); German version FprEN 61287-1:2013
文件草案——铁路应用——安装在机车车辆上的电力变流器——第1部分:特性和试验方法（IEC 9/1785/CDV:2013）；德文版FprEN 61287-1:2013

2013-11-01

Draft Document - Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 3-1: Intrinsic characteristics - Normalized railway noise spectrum and single number ratings for diffuse sound field applications; German and English version prEN 16272-3-1:2022
文件草案.铁路应用.基础设施.作用于空气声传播的噪声屏障和相关装置.声学性能测定的试验方法.第3-1部分:固有特性.标准化铁路噪声频谱和漫反射声的单次额定值

2022-03-01